Improved folding school-desk



B. GONVERS. FOLDING $011001, DESK.

N0 104,116; Patented June 14, 18701.

UNITED STATES PATENT OFFICE.

EUGENE CONVERS, OF OS\VEG(), NFJV YORK.

IMPROVED FOLDING SCHOOL-DESK.

Specification forming part of Letters Patent No. 104,116, dated June 14,1870.

To all whom it may concern:

Be it known that I, EUGENE C'oNvERs, of Oswego, Oswego county, New York,have invented certain new'and useful Improvements in the Construction ofSchool-Desks and F0lding Tables; and I do hereby declare that thefollowing is afull, clear, and exact description thereof, referencebeing had to the accompanying drawings, and'theletters of referencemarked thereon, making part of this specification, in Which- Figurel isavertical transverse section of the school-desk, with a folding seat andthe Writing-table folded down. Fig. 2 is a rear View, showing the barand spring by which the writing-table is held in position for use. Fig.3 shows the bar and notches,,in which the cams of the hinged armsareallowed full play for the lowering of the table.

The object of my invention is to provide a simple and economic'al meansof foldin g up a school-desk, so as to permit a free passage for thepurpose of cleaning the school-room, and facilitating movement throughthe room generally.

' It consists in the bar and spring, in combination with the hingedarms, as hereinafter described.

School-desks are already constructed with folding seats andfoldingtables. The folding of the table, by myinvention, is effected by meansof a metal bar, a, Fig.2, passing through the standards, and held inposition by a spring,

I), Fig. 2. This bar a, Fig. 2, is provided with notches c c, Fig. 3,toireceive the cam d, Fig. 1, of the hinged arm of the table. Thesenotches are cut obliquely on one side, so that the cam, when the tableis raised, will force back the bar and distend the spring. The springreplaces the bar as soon asthe projecting end of the cam has reached theface of it, and the table is thus held firmly in position for use. Thetable is readily and quickly lowered by a slight pressure on the end ofthe bar. This combination of spring and notched bar, with cam on thehinged arm, is the essential part of my invention, and provides a simpleand economicalmeans for raising and lowering the writing-table. Incombination with the folding seat, the whole of the school-desk can beso compactly folded up as-to occupy very little room, thus permittingeasy passage between the forms, and facilitating the cleaning of theschoolroomj What I claim as any invention, and desire to secure byLetters Patent, is-- p The combination of the bar a, provided with thenotches c and spring b, with cams don the arms of the writing-table, allconstructed as herein described, for the purposes specified. V

E. OONVERS.

Witnesses JOHN B. MorrLEY, EDM. F. BROWN.

